Q. Which of the following are the indicators of pollution ?

A
Lichen
B
Fungi
C
Algae
D
None of these
Solution:
  • Lichens can be used as air pollution indicators, especially of the concentration of sulfur dioxide in the atmosphere.
  • Lichens are plants that grow in exposed places such as rocks or tree bark.
  • Lichens have species-specific response patterns to increasing levels of atmospheric pollutants, ranging from relative resistance to high sensitivity.
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